/*
 * $Id: SubPicProviderImpl.h 20 2012-04-20 01:42:55Z aleksoid $
 *
 * (C) 2003-2006 Gabest
 * (C) 2006-2012 see Authors.txt
 *
 * This file is part of MPC-BE.
 *
 * MPC-BE is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * MPC-BE is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#pragma once

#include "ISubPic.h"

class CSubPicProviderImpl : public CUnknown, public ISubPicProvider
{
protected:
	CCritSec* m_pLock;

public:
	CSubPicProviderImpl(CCritSec* pLock);
	virtual ~CSubPicProviderImpl();

	DECLARE_IUNKNOWN;
	STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void** ppv);

	// ISubPicProvider

	STDMETHODIMP Lock();
	STDMETHODIMP Unlock();

	STDMETHODIMP_(POSITION) GetStartPosition(REFERENCE_TIME rt, double fps) = 0;
	STDMETHODIMP_(POSITION) GetNext(POSITION pos) = 0;

	STDMETHODIMP_(REFERENCE_TIME) GetStart(POSITION pos, double fps) = 0;
	STDMETHODIMP_(REFERENCE_TIME) GetStop(POSITION pos, double fps) = 0;

	STDMETHODIMP Render(SubPicDesc& spd, REFERENCE_TIME rt, double fps, RECT& bbox) = 0;
	STDMETHODIMP GetTextureSize (POSITION pos, SIZE& MaxTextureSize, SIZE& VirtualSize, POINT& VirtualTopLeft) {
		return E_NOTIMPL;
	};
};

